Slats ok blinds



UNITED sTATEs PATENT oEEioE.

JOHN WYBERD, OF NEW YORK, N. Y., ASSIGNOR TO FREDERIC S. LITTLEJOI-IN,OF NEW YORK, N. Y.

MODE OF OPERATING SLATS OR BLINDS.

Specication of Letters Patent No. 32,920, dated July 28, 1861.

To all whom it may concern:

Be it known that I, JOHN WYBERD, of the city, county, and State of NewYork, have invented a new and useful improvement in the mode of securingand operating adjustable slats used in windows, doors, shutters, blinds,or other suitable places; and I hereby declare the following to be afull, clear, and eXact description thereof, reference being had to theaccompanying draw ings, and to the letters of reference marked thereon,which form a part of the specification.

In order that the public may fully understand the nature of myinvention, and those skilled in the imechanic arts be enabled toconstruct and operate the same, I will describe it as follows:

Figure l is a perspective drawing of a frame (A.) which is about thesize of a window frame or that portion of the sash which receives theglass. This frame is made of fiat strips of metal the vertical sidesofwhich have my improvement attached which improvement consists in theuse of simple levers (B. B. B. B.) which are provided with curvedsprings (c. 0. 0. c.) these springs being secured by means of loops (el.d. d. d.) which (loops) are a part of the levers (B. B. B. B.) and soarranged that the springs are held firmly at their centers while theends thereof are left free to press the slats of wood, glass, metal, orother suitable substance, of any desired thickness firmly against thehorizontal ianges f. f. thereby retaining the slats in their properplaces the same being operated by means of eyelets; these eyelets alsoconstitute a part of the lever plates (B. B. B. B.) as shown moreclearly at letter (e.) Fig. 2. which is an enlarged perspective backview of lever (B.).

Letter Fig. l. is a strip of metal employed to operate the levers (B. B.B. B.)

which move freely upon their eyelet axes which serve in the' doublecapacity of securing the plates or levers (B. B. B. to the verticalsides (A) of the frame or sash, at the same time allowing the slats tobe moved more'freely than by any other attachment, when operated by thepower or strip which is also provided with a spiral spring (s) the upperend of which is fastened to the frame or sash and assists to support andoperate the movable slats.

After having thus set forth the arrangement of the individual parts ofmy invention I will next proceed to point out the novelty thereof whichconsists in the application and use of the flat curved spring (c.) andloop ((Z,) the same forming a part of the lever plate and eyelet for thepurpose of receiving and holding window or other slats employed forVentilating purposes at any desired angle.

The superiority of the above arrangement over those that are in commonuse is that I am enabled to use any thickness of slats or differentslats without disarranging the apparatus employed to hold the slats intheir respective places, hence I believe the above to be new and useful.

Therefore what I claim as novel and desire to secure by Letters Patentof the United States is- The curved springs (c. c. c. loops ((Z. fl.'

JNO. IVYBERD.

)Vitnesses F. B. LrTTLEJoHN, JAMES P. MCLEAN.

